I don't solve problems in competitions, but I like to learn how to solve blocks. I keep a few cubes on my desk at work and fiddle with them while I think about problems. This cube is well made, spins well and I haven't had any pops with it. I always prefer non-stick cubes because regardless of the quality of the stickers the sticker cube has, they always pick up around the edges over time and my fingers just don't like it. The sticker-free dice are beautifully smooth and the colors are bright and easy to see.
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